Hi Chris, What exactly are you exercising out of host stack? In vpp 23.10 tcp byte tracker was default off, in fact still is in 26.06, and to turn it on you’d have to manipulate the tcp structure at init time. We’re currently working on hardening and extending its functionality, but it’s not yet fully productized.
The issue you’re hitting is heap exhaustion, potentially because of large number of sessions or some leak that I’m not aware of. As a side note, I’ve never tested tcp with more than 16 vpp workers, so not sure what to expect with 110+. Should work but probably memory consumption (and heap contention) is going to be an issue, while structures grow. Regards, Florin > On Aug 11, 2026, at 5:22 AM, chris b via lists.fd.io > <[email protected]> wrote: > > <mceclip0.png> > > looks to be contention point - any host stack experts on > > >
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#27132): https://lists.fd.io/g/vpp-dev/message/27132 Mute This Topic: https://lists.fd.io/mt/120698796/21656 Group Owner: [email protected] Unsubscribe: https://lists.fd.io/g/vpp-dev/leave/14379924/21656/631435203/xyzzy [[email protected]] -=-=-=-=-=-=-=-=-=-=-=-
